Electric lamp socket



My l2, 1931n K. PERKINS ELECTRIC LAMP SOCKET Filed June 1G, 1928 grfwntoz l Ken/1 et/ Per/cin.;

Patented May 12, 1931 UNITI-:D STATES PATENTv OFFICE KENNETH PERKINS, F ELIZABETH, NEW JERSEY, ASSIGNOR T0 THE SINGER MANU.-

FACTURING COMPANY, OF ELIZABETH, NEW JERSEY, A. CORPORATION 0F NEW JERSEY ELECTRIC LAMP SOCKET Application led .Tune l16,

p This invention relates to electric lampsockets and has for an object to provide a lamp-socket the casing of which` tightly encloses the socket-switch mechanism so as to protect the latter from dust or other extraneous matter which may interfere with its proper working. A further object of the invention is to provide a lamp-socket' having switch-mechanism and a switch-operating lo button which is directly supported by the socket-shell, rather than by the socket-insides, and is thus stronger and more resistant to damage.

To the attainment of the ends in view, the

socket-shell preferablycomprises body and detachable cap sections molded from a phe-V nolic condensation product or other suitable molding material lhaving the requisite strength and'resistance to heat. The switchoperating button is directly and. slidably y mounted on the socket-shell, preferably by forming the shell with a longitudinally extending slot or slideway and by grooving or undercutting the sides of the button to t -ag-the slideway; the button having outer and inner flanges overlapping the outer and inner walls of the socket-shell adjacent the slot in thewlatter, so that the buttoncan only be removed by removing the cap-member and shifting` the button out vof the'slideway. The button is formed with apron v extensions which alternately close each end of the slideway when the butt'on is shifted back-andforth.` The switch-mechanismis preferably of the toggle-operated type including a lever which -freely projects into a socket kin the Ender sideof the slidably mounted operating utton.

' In the aecompahjing drawings-Fig. 11s' a longitudinal. section-of an electricrlampsocket embodying the invention. Fig. 2 is a section'o'n the line 2-2, Fig; 1, showingv the operating-button in end elevation.` Fig.,

3 is a section on the line 3 -l-3, Fig.L 1.' `Fi s.A 4 and`5- are, respectively,side'and end e e -6 lis ai'disassembledperspective view"` of]y the vations 'of the operating 'button, and: Fig.`

1928. Serial No. 285,801.

one end to form the usual lamp-base receiving aperture 2 andhaving at its other end a thickened rim 3. The body 1 is also formed with a longitudinally extendin slot 4 in whichis slidably mounted the ase of the switch-operating button 5. The sides of the base of the button 5 are grooved vat 6 to form outer andinner flanges 7, 8, which engage the outer and inner surfaces ofthe shell 1 adjacent the slot 4. v

The large end of the shell 1 is closed by the cap 9 which is secured to the shell by screws 10.'. The cap 9 isA also preferably of molded construction with a metal insert` and shellfor the screws 10. The .button 5 is formed at'its opposite ends with apron extensions 15. which alternately close the opposite ends of the slot 4 when rthe button is slid back-and-forth. The button 5 is also formed in its under side with a slot 16 to receive the end 17 of the operating lever 18 Vfor the socket-switch 19.

The socket-switch 19 is preferably of the toggle-type constructed substantially in accordance with the disclosure of the patent to D. H.Chason, No. 1,641,134 of August 30, 1927 In such a switch mechanism there is fulcrumed onf the pin 20, which supports the lever 18, a carrier frame 21 for a bridging contact member 22 which at one exterme of its throw bridges the contacts 23, 24k There is'pivoted to the lever 18 at 25 one end of a toggle-member 26, the other end of which is slidably received in a slot in the frame 21.y An expansion spring 27 surrounds the togglemember 26.

There .is screwed onto the end of the sleeve 11 a cord-inlet bushing 28, also of molded construction with a threaded metal sleeve insert 29 and notches 30, such bushing adaptlighting device disclosed in the patent to Y ing the socket for use in the sewing machine Clisson No. 1,546,619 af July 21, 1925.

Having thus set forth the nature of the invention,rwhat1claim herein is: n

1. An electric lamp-socket comprlsing a socket-shell having a longitudinally extending slideway, a socket-switch mechanism received in said shell and having a pivoted switch-operating lever movable lengthwiseof the socket-shell, and an operating button mounted in said slidevvay and supported by the socket-shell independently of the switch.- mechanism and connected to said operating lever.

2. An electric lamp-socket comprising a socket-shell having a longitudinally extending slideway, a socket-switch mechanism received in said shell and having aA pivoted switch-operating 'lever movable lengthwise of the'socket-shell, and an operating button mounted in said slideway and supported by the socket-shell, said button beingformed in its under side with a Slot in which said operating lever freely extends.V

3. An' electric lamp-socket comprisingfa cylindrical socket-shell member having a slot extending from an open endof said member longitudinally q''f the latter, a second member detachably connected to saidopen end of the socket-shell member and closing the open v end of said slot, a buttonhaving grooves in itssides.slidablyembracing the side edges of said slot and entirely supported and held in operative position by said Socket-shell member, and a complete unitary socket-switch assembly enclosed by said socket-shellmember and having a switch-operating element movable lengthwise of said slot and connected to said button.

In 'testimony whereof, I have signed my name to this specification.

KENNETH PEEKESIS.v

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